,NSG 318 Exam 3 Introduction to Pharmacology Questions And
Answers 2026/2027 Grand canyon university
Q1. Which medication is classified as a cardiac glycoside?
A. Digoxin
B. Diltiazem
C. Nitroglycerin
D. Metoprolol
Correct Answer: A
Rationale: Digoxin is a cardiac glycoside that increases myocardial
contractility and slows conduction through the atrioventricular node.
Q2. What is the primary therapeutic effect of digoxin in heart
failure?
A. Increased myocardial contractility
B. Increased peripheral vasoconstriction
C. Increased platelet aggregation
D. Increased sodium retention
Correct Answer: A
Rationale: Digoxin increases the force of myocardial contraction, which can
improve cardiac output in selected clients with heart failure.
Q3. Which assessment should the nurse perform immediately before
administering digoxin?
A. Apical pulse
B. Bowel sounds
C. Pupillary response
D. Temperature only
Correct Answer: A
Rationale: Digoxin can slow the heart rate, so the apical pulse should be
assessed before administration.
Q4. Which finding may indicate digoxin toxicity?
A. Anorexia and nausea
B. Increased appetite
C. Severe hyperactivity
D. Increased urination
, Correct Answer: A
Rationale: Gastrointestinal symptoms such as anorexia, nausea, and
vomiting can occur with digoxin toxicity.
**Q5. Which visual change may occur with digoxin toxicity?
A. Yellow or blurred vision
B. Improved visual acuity
C. Complete loss of peripheral vision only
D. Increased color discrimination
Correct Answer: A
Rationale: Visual disturbances, including blurred vision or yellow/green
visual changes, can occur with digoxin toxicity.
**Q6. Which cardiac finding is concerning in a client receiving digoxin?
A. Bradycardia
B. Sinus tachycardia only
C. Mild hypertension
D. Bounding peripheral pulses
Correct Answer: A
Rationale: Digoxin can slow cardiac conduction and produce bradycardia;
significant rhythm changes may indicate toxicity.
**Q7. Which medication is used to treat severe digoxin toxicity?
A. Digoxin immune Fab
B. Protamine sulfate
C. Vitamin K
D. Naloxone
Correct Answer: A
Rationale: Digoxin immune Fab binds circulating digoxin and is used for
serious digoxin toxicity.
**Q8. Which electrolyte imbalance can increase the risk of digoxin toxicity?
A. Hypokalemia
B. Hypernatremia
C. Hyperchloremia
D. Hyperphosphatemia
Answers 2026/2027 Grand canyon university
Q1. Which medication is classified as a cardiac glycoside?
A. Digoxin
B. Diltiazem
C. Nitroglycerin
D. Metoprolol
Correct Answer: A
Rationale: Digoxin is a cardiac glycoside that increases myocardial
contractility and slows conduction through the atrioventricular node.
Q2. What is the primary therapeutic effect of digoxin in heart
failure?
A. Increased myocardial contractility
B. Increased peripheral vasoconstriction
C. Increased platelet aggregation
D. Increased sodium retention
Correct Answer: A
Rationale: Digoxin increases the force of myocardial contraction, which can
improve cardiac output in selected clients with heart failure.
Q3. Which assessment should the nurse perform immediately before
administering digoxin?
A. Apical pulse
B. Bowel sounds
C. Pupillary response
D. Temperature only
Correct Answer: A
Rationale: Digoxin can slow the heart rate, so the apical pulse should be
assessed before administration.
Q4. Which finding may indicate digoxin toxicity?
A. Anorexia and nausea
B. Increased appetite
C. Severe hyperactivity
D. Increased urination
, Correct Answer: A
Rationale: Gastrointestinal symptoms such as anorexia, nausea, and
vomiting can occur with digoxin toxicity.
**Q5. Which visual change may occur with digoxin toxicity?
A. Yellow or blurred vision
B. Improved visual acuity
C. Complete loss of peripheral vision only
D. Increased color discrimination
Correct Answer: A
Rationale: Visual disturbances, including blurred vision or yellow/green
visual changes, can occur with digoxin toxicity.
**Q6. Which cardiac finding is concerning in a client receiving digoxin?
A. Bradycardia
B. Sinus tachycardia only
C. Mild hypertension
D. Bounding peripheral pulses
Correct Answer: A
Rationale: Digoxin can slow cardiac conduction and produce bradycardia;
significant rhythm changes may indicate toxicity.
**Q7. Which medication is used to treat severe digoxin toxicity?
A. Digoxin immune Fab
B. Protamine sulfate
C. Vitamin K
D. Naloxone
Correct Answer: A
Rationale: Digoxin immune Fab binds circulating digoxin and is used for
serious digoxin toxicity.
**Q8. Which electrolyte imbalance can increase the risk of digoxin toxicity?
A. Hypokalemia
B. Hypernatremia
C. Hyperchloremia
D. Hyperphosphatemia
